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Legislation Top 10 Reasons to Use Green Alloys™
Standard-Stocked Alloys

C89844 Lead-Free Replacement for C844

  • Product Description: Bismuth Tin Bronze
  • Solids: 1/2"  to 10" OD
  • Tubes: 1 1/8" to 9" OD
  • Rectangles: Up to 15"
  • Standard Lengths: 144"
  • Shape/Form: Semi-finished; mill stock or near net shapes; anode; bar stock; billet/bloom; squares; hex; plate; profile or structural shape; flats/rectangular bar
  • Compliance: C89844 is compliant with key legislation including (1) Federal Safe Drinking Water Act 1974 &mdash SDWA, (2) Federal Reduction of Lead in Drinking Water Act 2011 and (3) California AF1953
  • » Download C89844 Spec Sheet (.pdf)

Typical Uses

  • Plumbing fittings/valves for potable water

Chemical Composition

Cu% Sn% Pb% Zn% Fe% Ni%1 Sb% P% S% Al% Si% Bi%
  • 1Ni value includes Co.
  • Note: Cu + Sum of Named Elements, 99.3% min. Single values represent maximums.
83.00-
86.00
3.00-
5.00
 
0.20
7.00-
10.00
 
0.30
 
1.00
 
0.25
 
0.05
 
0.08
 
0.005
 
0.005
2.00
-4.00

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/in at 68° F)
C89844 70 0.310

Mechanical Properties (C89844 Federalloy® III-844)

Tensile Strength, min Yield Strength, at .5% extension under load min Elongation, in 2 in. or 50 mm min Brinell Hardness Remarks
ksi MPa ksi MPa % typical BHN  
28 193 13 90 5 55 (500 kg)  

Physical Properties (provided by CDA)

  US Customary Metric
Melting Point - Liquidus 1850° F 1010° C
Melting Point - Solidus 1550° F 853° C
Density 0.310 lb/in3 at 68° F 8.58 gm/cm3 at 20° C
Specific Gravity 8.58 8.58
Electrical Conductivity 16.8% IACS at 68° F 0.095 MegaSiemens/cm at 20° C
Thermal Conductivity 46.70 Btu · ft/(hr · ft2 · °F) at 68° F 80.9 W/m at 20° C
Coefficient of Thermal Expansion 10 · 10-6 per °F (68°-392° F) 17.3 · 10-6 per °C (20°-200° C)
Specific Heat Capacity 0.08 Btu/lb/°F at 68° F 335.2 J/kg at 293° C
Modulas of Elasticity in Tension 13000 ksi 89622 MPa

Fabrication Properties (provided by CDA)

Joining Technique Suitability
Soldering Excellent
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Not Recommended
Coated Metal Arc Welding Not Recommended

Thermal Properties (provided by CDA)

Treatment Temp./Time - US Temp./Time - SI
Stress Temperature 500 260
Solution Minimum    
Solution Maximum
Solution Time 0.0
Solution Medium
Precipitation Value    
Precipitation Time    
Precipitation Medium
Annealing Minimum    
Annealing Maximum    
Annealing Time  
Hot Works Minimum    
Hot Works Maximum